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12 Cards in this Set
- Front
- Back
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External Ear |
Composed of the auricle or pinna and the external auditory canal |
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Middle ear |
Begins with the tympanic membrane which is relatively thin and vibrates when sound waves hit it. |
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Inner ear |
Complex system of communicating chambers and tubes known as the labyrinth. Divided into 3 portions, semicircular canals, a vestibule, and a cochlea. |
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Cerumen |
A wax like substance commonly known as earwax, lubricates the ear and protects it by trapping dirt, dust, and other microbes. |
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Tympanic membrane |
Fibrous partition located at the inner end of the external auditory canal, separates the external ear from the middle ear. |
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Ossicles |
3 tiny bones: malleus (hammer), incus (anvil), and stapes (stirrup) |
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Oval window |
Ends the middle ear and marks the beginning of the inner ear. |
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Eustachian tube |
Helps maintain equal pressure on both sides of the eardrum, connects middle ear to the throat. |
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Organ of corti |
Organ of hearing |
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Otitis externa |
"Swimmers ear" , infection of the outer ear, the infection can be localized. |
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Otitis media |
Middle ear infection |
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Otitis |
Inflammation of the ear, all 3 areas of the ear may be inflamed |
